linux-kernel - [PATCH v4 net-next 11/19] net: mvpp2: add spinlock for FW FCA configuration path

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1611747815-1934-12-git-send-email-stefanc@marvell.com>
Date:   Wed, 27 Jan 2021 13:43:27 +0200
From:   <stefanc@...vell.com>
To:     <netdev@...r.kernel.org>
CC:     <thomas.petazzoni@...tlin.com>, <davem@...emloft.net>,
        <nadavh@...vell.com>, <ymarkman@...vell.com>,
        <linux-kernel@...r.kernel.org>, <stefanc@...vell.com>,
        <kuba@...nel.org>, <linux@...linux.org.uk>, <mw@...ihalf.com>,
        <andrew@...n.ch>, <rmk+kernel@...linux.org.uk>,
        <atenart@...nel.org>
Subject: [PATCH v4 net-next 11/19] net: mvpp2: add spinlock for FW FCA configuration path

From: Stefan Chulski <stefanc@...vell.com>

Spinlock added to MSS shared memory configuration space.

Signed-off-by: Stefan Chulski <stefanc@...vell.com>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2.h      | 5 +++++
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
index 9d8993f..f34e260 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
@@ -1021,6 +1021,11 @@ struct mvpp2 {
 
 	/* CM3 SRAM pool */
 	struct gen_pool *sram_pool;
+
+	bool custom_dma_mask;
+
+	/* Spinlocks for CM3 shared memory configuration */
+	spinlock_t mss_spinlock;
 };
 
 struct mvpp2_pcpu_stats {
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index a4933c4..64534f0 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -7163,6 +7163,9 @@ static int mvpp2_probe(struct platform_device *pdev)
 			priv->hw_version = MVPP23;
 	}
 
+	/* Init mss lock */
+	spin_lock_init(&priv->mss_spinlock);
+
 	/* Initialize network controller */
 	err = mvpp2_init(pdev, priv);
 	if (err < 0) {
-- 
1.9.1